Development of Long Distance Data Transmission and Control Circuit in Borehole

This paper introduces a data transmission circuit used to transmit signals over thousands of meters in borehole; meanwhile, a control system that is equipped with the circuit is also presented here. This set of equipment has many advantages over previous systems-smaller size, less cost, longer communication distance and friendlier user interface. The design of hardware in the system consists of LVDS transceiver circuit, USB port circuit based on high speed MCU C8051F321, automatic power-on circuit based on relay TQ201 and acquisition circuit based on 24-bit analog-to-digital converter LTC2492. The software is based on both C language and VC++6.0. Finally, it accomplishes a kind of data transmission circuit and control system in borehole which delivers the data from thousands of meters away.

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Development of Data Acquisition and Control System with High Speed and Long Distance

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.568-570.203 ◽

2014 ◽

Vol 568-570 ◽

pp. 203-207

Author(s):

Lan Hao Zhao ◽

Xiao Feng He ◽

Long Jun Luo ◽

Xue Wen Yan

Keyword(s):

Control System ◽

Data Acquisition ◽

Software Design ◽

High Speed ◽

Test Bench ◽

Safety Valve ◽

Long Distance ◽

Automation Control ◽

And Control ◽

Large Flow

A data acquisition and control system for a safety valve test bench with high pressure and large flow rate, was developed based on the host-slave architecture, which takes an Industrial Personal Computer (IPC) as host computer and a Programmable Automatic Controller (PAC) as salve computer. The hardware architecture and software design of this system were introduced in detail. This system was verified by the experiment, and the results indicate that it can fulfill the requirement of data acquisition and control with high speed and long distance. This study can provide reference for many automation control fields.

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Study on Profibus-Based Control System of the Experimental Device for Cutter Head in Shield Tunneling Machine

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.317-319.604 ◽

2011 ◽

Vol 317-319 ◽

pp. 604-607

Author(s):

Xiu Xiang Huang ◽

Qing Tan ◽

Yi Min Xia ◽

Wen Hua Liu

Keyword(s):

Control System ◽

High Speed ◽

Experimental Device ◽

Shield Tunneling ◽

Long Distance ◽

Sensor Signals ◽

Tunneling Machine ◽

Cutter Head ◽

And Control ◽

Shield Machine

The structure and characteristics of test signals of the experimental device for cutter head in shield machine are analyzed. Based upon this analysis, Profibus-based control system is designed. With the use of a distributed I / O station on-site analog signal, the problems of anti-interference for long-distance transmission of signals are resolved, and high-speed transmission for sensor signals and control signals are realized.

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Design of Standard 12-Lead ECG Acquisition Terminals Based on ADS1298

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.749.154 ◽

2013 ◽

Vol 749 ◽

pp. 154-159

Author(s):

Feng Wang ◽

Hong Yu Jiao ◽

Ping Zhou

Keyword(s):

Low Power ◽

Data Transmission ◽

High Speed ◽

Low Noise ◽

Digital Converter ◽

Ultra Low Power ◽

Analog To Digital ◽

The Core ◽

Compact Design ◽

Sd Card

This paper introduced a compact design of portable standard 12-lead ECG acquisition terminals. For portable application purposes, an ultra-low power 16-bit microcontroller, which acted the core unit of the terminal, an 8-channel 24-bit , low-noise low-power high speed,analog-to-digital converter incorporated ECG features,external SD card storage,USB data-transmission module were intergrated into the terminal.Through the terminal,the sampling,storage,transmission and display of standard 12-lead ECG could be implemented in real-time.

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Design of Data Acquisition Based on Linux

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.63-64.891 ◽

2011 ◽

Vol 63-64 ◽

pp. 891-895

Author(s):

Shu Hai Wang ◽

Shu Wang Chen ◽

Jian Song Shao

Keyword(s):

Data Acquisition ◽

Data Transmission ◽

High Speed ◽

Program Design ◽

Data Acquisition System ◽

Acquisition System ◽

Analog To Digital Converter ◽

Biological Engineering ◽

Digital Converter ◽

Analog To Digital

In recent years, data acquisition technology is more widely used in industrial. This paper introduces a data acquisition system based on linux OS. The data transmission follows USB2.0 protocol. The hardware is mainly composed by CY7C68013 and MAX1195. CY7C68013 is a high-speed USB peripheral controller produced by Cypress Semiconductor Corporation. Max1195 is a dual and high-speed analog-to-digital converter. Hardware construction and driver program design of this system are particularly recommended in this paper. This system can be used in electronic test and biological engineering.

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Automatic Laser Monitoring for Dam Safety

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.295-296.239 ◽

2005 ◽

Vol 295-296 ◽

pp. 239-244

Author(s):

K.D. Yue ◽

X. Zhou ◽

J. Gao

Keyword(s):

Data Transmission ◽

Can Bus ◽

Arch Dam ◽

Dam Safety ◽

Monitoring Methods ◽

Long Distance ◽

Dam Safety Monitoring ◽

Distance Data ◽

Data Transmission System ◽

Laser Monitoring

Many monitoring methods for dam safety have been proposed in recent years but it is difficult to monitor the arch dam automatically. A novel inspecting method for arch dam safety monitoring is described in this paper. This measurement system is based on the principle of transmitting the comparative displacement one by one. The error and accuracy of the system is analyzed. By this method, a large arch dam can be measured automatically. Long distance data transmission system using CAN bus and Internet is established. It is convenient to monitor the safety of dams from long distances.

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